[INFO] fetching crate density-mesh-core 1.5.0...
[INFO] testing density-mesh-core-1.5.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate density-mesh-core 1.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate density-mesh-core 1.5.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate density-mesh-core 1.5.0
[INFO] finished tweaking crates.io crate density-mesh-core 1.5.0
[INFO] tweaked toml for crates.io crate density-mesh-core 1.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88d966afa329308335d5564601447710df6cdcc553b007f8f2b6e89b53950546
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "88d966afa329308335d5564601447710df6cdcc553b007f8f2b6e89b53950546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88d966afa329308335d5564601447710df6cdcc553b007f8f2b6e89b53950546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d966afa329308335d5564601447710df6cdcc553b007f8f2b6e89b53950546", kill_on_drop: false }`
[INFO] [stdout] 88d966afa329308335d5564601447710df6cdcc553b007f8f2b6e89b53950546
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3daac497566e4b9e7975c9a9a00f071ea54b5d83f63d64798cdbbb24611b3de8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3daac497566e4b9e7975c9a9a00f071ea54b5d83f63d64798cdbbb24611b3de8", kill_on_drop: false }`
[INFO] [stderr]    Compiling triangulation v0.1.1
[INFO] [stderr]    Compiling density-mesh-core v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "3daac497566e4b9e7975c9a9a00f071ea54b5d83f63d64798cdbbb24611b3de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3daac497566e4b9e7975c9a9a00f071ea54b5d83f63d64798cdbbb24611b3de8", kill_on_drop: false }`
[INFO] [stdout] 3daac497566e4b9e7975c9a9a00f071ea54b5d83f63d64798cdbbb24611b3de8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd1809e841568a4c9cce9adb6c38be5e3a45242c67b90683324e1cad8a8f5a81
[INFO] running `Command { std: "docker" "start" "-a" "cd1809e841568a4c9cce9adb6c38be5e3a45242c67b90683324e1cad8a8f5a81", kill_on_drop: false }`
[INFO] [stderr]    Compiling density-mesh-core v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "cd1809e841568a4c9cce9adb6c38be5e3a45242c67b90683324e1cad8a8f5a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd1809e841568a4c9cce9adb6c38be5e3a45242c67b90683324e1cad8a8f5a81", kill_on_drop: false }`
[INFO] [stdout] cd1809e841568a4c9cce9adb6c38be5e3a45242c67b90683324e1cad8a8f5a81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9bfa8956554c541da154b77471e2ca82ceee743e9850393f524f0ae41c4b48eb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9bfa8956554c541da154b77471e2ca82ceee743e9850393f524f0ae41c4b48eb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/density_mesh_core-eec37251e8e3ae03
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests density-mesh-core
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/coord.rs - coord::Coord (line 8) ... ok
[INFO] [stdout] test src/map.rs - map::DensityMap::new (line 35) ... ok
[INFO] [stdout] test src/map.rs - map::DensityMap::value_steepness_iter (line 164) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9bfa8956554c541da154b77471e2ca82ceee743e9850393f524f0ae41c4b48eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bfa8956554c541da154b77471e2ca82ceee743e9850393f524f0ae41c4b48eb", kill_on_drop: false }`
[INFO] [stdout] 9bfa8956554c541da154b77471e2ca82ceee743e9850393f524f0ae41c4b48eb